| Bug ID | 107660 |
|---|---|
| Summary | [regression] Firefox crashes on any WebGL usage with latest libdrm |
| Product | DRI |
| Version | XOrg git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Keywords | regression |
| Severity | normal |
| Priority | medium |
| Component | libdrm |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | kai@dev.carbon-project.org |
| CC | emil.l.velikov@gmail.com |
I recently noticed, that tabs in Firefox (Debian package 61.0.1-1 and 61.0.2 from mozilla.org) started crashing on WebGL usage. The easiest trigger is to just visit https://maps.gogle.com/ Since I was pointed towards bug 107384, comment #6 on IRC by Michel Dänzer and I see the loader errors as he described on IRC, I'm assuming this is related. I can't be 100 % sure, because I'm unable to get a proper backtrace from Firefox (see below). It doesn't seem to be the same issue though, because using a libdrm built from Git (f31fd57c60) doesn't fix the crashes for me. I tried attaching GDB to the content process by launching firefox with: $ MOZ_DEBUG_CHILD_PROCESS=1 firefox -safe-mode and then running # gdb /usr/lib/firefox/firefox $PID where $PID is replaced by the actual PID of the tab process, which firefox prints on the console when started with MOZ_DEBUG_CHILD_PROCESS=1. The attaching seems to run fine, gdb is loading a bunch of debug information for all the libraries and Firefox itself. But when I continue from the (gdb) prompt, I immediately run into an endless stream of SIGSYS errors like > Thread 1 "Web Content" received signal SIGSYS, Bad system call. > 0x00007f884b08b397 in __access (file=0x7f88370b3360 "/usr/share/gtk-3.0/settings.ini", type=type@entry=0) at ../sysdeps/unix/sysv/linux/access.c:27 > 27 ../sysdeps/unix/sysv/linux/access.c: No such file or directory. Probably the sandbox that prevents this? Sadly I haven't found a way around that yet. (Any pointers welcome. Maybe it's possible to instrument libdrm/radeonsi/… in a way, that helpful information can be dumped somewhere, when the tab crashes.) Without GDB the tab just crashes and offers to be closed or reloaded. In the terminal window where I started Firefox (with a clean profile and in safe mode) I get the following error: > libGL error: MESA-LOADER: failed to retrieve device information > libGL error: unable to load driver: amdgpu_dri.so > libGL error: driver pointer missing > libGL error: failed to load driver: amdgpu > libGL error: MESA-LOADER: failed to retrieve device information > libGL error: unable to load driver: amdgpu_dri.so > libGL error: driver pointer missing > libGL error: failed to load driver: amdgpu > [Parent 20860, Gecko_IOThread] WARNING: pipe error (47): Connection reset by peer: file /build/firefox-tG9MzV/firefox-61.0.1/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 353 > [Parent 20860, Gecko_IOThread] WARNING: pipe error: Broken pipe: file /build/firefox-tG9MzV/firefox-61.0.1/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 709 > > ###!!! [Parent][MessageChannel] Error: (msgtype=0x160068,name=PBrowser::Msg_SynthMouseMoveEvent) Channel error: cannot send/recv > > > ###!!! [Parent][MessageChannel] Error: (msgtype=0x16007F,name=PBrowser::Msg_Destroy) Channel error: cannot send/recv The graphics stack I used (fully updated Debian testing as a base) for testing is: GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1) Mesa: Git:master/5fab32ddad libdrm: Git:master/f31fd57c60 LLVM: SVN:trunk/r340334 (8.0 devel) X.Org: 2:1.20.0-3 Linux: 4.18.3 Firmware (firmware-amd-graphics): 20180518-1 libclc: Git:master/62a9191b60 DDX (xserver-xorg-video-amdgpu): 18.0.1-1+b1 Let me know, if you need anything else.
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